The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 1981
Filed:
Dec. 22, 1978
James M Kates, Andover, MA (US);
Teledyne Industries, Inc., Los Angeles, CA (US);
Abstract
An improved loudspeaker system comprises an active crossover network for dividing the signal energy of an input audio signal into at least first and second frequency ranges separated by at least one frequency band, and at least a third frequency range including at least a part of the frequency band. The number of power amplifiers normally associated with a typical, similar powered loudspeaker system is reduced by combining the signal energy of the audio signal with at least the first and second frequency ranges so as to produce a first component signal and utilizing the signal energy in the third frequency range to form at least, in part, a second component signal. The system also comprises amplification means for independently amplifying the first component signal and the second component signal; means, including a passive crossover network, for dividing the signal energy of the amplified component signals into at least three output signals respectively including the signal energy in the three frequency ranges; and a plurality of speaker drivers connected, respectively, to be driven by the respective output signals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile